baber/WOPTO huggingface dataset:
Patent GB-459475-A (GB)
Title: Improvements in controlling and regulating the heating elements of electric kettles and like boiling or cooking apparatus
IPC: A47J27/21
Filed: 1936-05-19
Abstract: 459,475. Automatic control systems. WILKINSON, G., 23, Otley Road, Harrogate. May 19, 1936, No. 14133. [Class 38 (iv)] [See also Groups XXXVI and XXXVII] Temperature.-Control arrangement for the heating elements of a kettle &c. comprising a pair of elements in series with a thermostatic switch short-circuiting one of them until the desired temperature is reached, wherein the thermostatic switch is mounted within the casing protecting the circuit terminals. The switch element comprises a base b, Fig. 1, mounted on the kettle carrying contacts c, c<1> and d, d<1> to which the main and auxiliary heaters are connected. Contacts c<1> and dl are connected together and contacts c, d extended to form plugs to engage a socket s, Fig. 2, so that the heaters are in series across the supply. Bridging the contacts d, d<1>, and thus short-circuiting the auxiliary heater, is a pivoted contact arm f which is operated by a bimetallic strip k to insert the auxiliary heater in circuit when the required temperature is reached. A ring-shaped contact i is used to allow it to be turned round to give a fresh contact face. The bimetallic strip has an adjustable fixing l to enable the temperature setting to be adjusted. The bimetallic strip may be put out of action by a cam p pivoted to the socket s and having an operating handle p2. In a modification, the expansion of a liquidfilled capsule is used to operate the switch.
Patent GB-816588-A (GB)
Title: Improvements in the purification of acetylene
IPC: C07C7/11
Filed: 1957-05-03
Abstract: Acetylene is separated from a gas containing it by treating the gas with a solvent selective for acetylene and higher acetylenes, which solvent has present therein a compound of the formula <FORM:0816588/IV (b)/1> in which R1 and R2 are H atoms or alkyl radicals of 1 to 4 carbon atoms.  The compound may be pyridine, 2-methyl-5-ethyl pyridine, 2-picoline, 3-picoline, or 4-picoline and may be used in an amount of 0.01 to 5.0 per cent based on the total weight of the solution.  In examples, in which butyrolactone is used as the solvent, from 0.01 to 1.5 per cent of the compound is added. This compound prevents the precipitation of polymers of the higher acetylenes.
Patent GB-931545-A (GB)
Title: Improvements in linings for mine shafts
IPC: E21D5/06
Filed: 1962-04-12
Abstract: 931,545. Bore-holes. LOBBERT & CO. G.m.b.H. April 12, 1962 [March 10, 1962], No. 14161/62. Class 85. A mine shaft is lagged by spaced frames 1 which support mats formed by members 3, 4, 7, 9. The members 9 have hooks 8 engaging the frames, and the members 3 have hooks 5 which engage the members 7 of the adjacent lower mat. The lagging is covered by a wire mesh 10.
Patent GB-1044033-A (GB)
Title: Improvements in or relating to the knitted collars
IPC: C09J7/26
Filed: 1963-04-09
Abstract: 1,044,033. Knitted fabrics. EDOUARD DUBIED ET CIE S.A. April 9, 1963 [April 17, 1962], No. 14201/63. Heading D1K. In order to provide better shaping when folded a knitted turndown collar of other than plain stitch fabric comprises, in its unfolded state, an inner portion 4, an outer portion 2 and a fold line portion 3 which defines a predetermined curved fold line, said inner and outer portions being assymetrical to each other and to the curved fold line portion and the curved fold line portion being formed by plain stitches. The curvature of this fold line can be formed by knitting on to a straight row or rows of plain stitches supplementary flechage rows of stitches 2a, 4a, Fig. 6 (not shown) which when the fabric is removed from the machine distort the rows of plain stitches into a curve. Alternatively, small rectangular plain stitch areas 3a, 3b Fig. 7 (not shown) may be knitted in stepped formation across the fabric to provide the curved fold line.
Patent GB-658828-A (GB)
Title: Improvements in the manipulation and storage of bromine
IPC: C01B7/09
Filed: 1949-05-27
Abstract: Lead or lead-lined bromine receptacles are rendered corrosion resistant by providing an oxidizing agent in the vessel for the hydrogen bromide contaminant.  The oxidizing agents may be metal oxides such as lead peroxide or manganese dioxide, or salts of the oxygen acids of bromine such as bromates or hypobromites.  The latter may be added as an aqueous solution or generated in situ by adding an aqueous alkaline liquor containing for example sodium, potassium or calcium hydroxides, when a mixture of bromide and hypobromite is formed.  Alternatively the metal oxides or alkalies may be supported above the liquid bromine level in baskets.  The lead peroxide may also be formed on the walls of the vessel by anodic oxidation, using sulphuric acid as electrolyte.  A purification and distillation apparatus for bromine is described, where the boiling vessel is protected by the presence of lead peroxide or bromate and the condenser filled with lead peroxide lumps.
Patent GB-1350823-A (GB)
Title: Process for purification of isobutylene oxide
IPC: C07D301/32
Filed: 1971-05-11
Abstract: 1350823 Purification of isobutylene oxide DAICEL Ltd 11 May 1971 [15 May 1970] 14296/71 Heading C2C Crude isobutylene oxide solution containing 2% or more by weight of water is purified by removing water from the crude isobutylene oxide solution by means of a conventional method of dehydration not involving distillation to obtain a predehydrated isobutylene oxide solution having a water content of less than 2% by weight and then distilling azeotropically said predehydrated isobutylene oxide solution to give a substantially anhydrous isobutylene oxide solution as a still residue. Specified means of dehydration are the use of drying agents or freeze dehydration. Specified drying agents are NaOH, KOH, CaH 2 , Na 2 SO 4  (anhydride), Na 2 CO 3 , K 2 CO 3 , CaCl 2  (anhydride or dihydrate) and synthetic zeolite. The anhydrous solution of isobutylene oxide may be subjected to a second distillation step to remove methyl acetate or ethyl acetate. Examples are given which illustrate the process.
Patent GB-317513-A (GB)
Title: Preservative package for articles in general especially fruits and the like, and the method of making and applying the same
IPC: A23L1/00
Filed: 1928-05-15
Abstract: 317,513. Jackson, L. Mellersh-, (Cellacote Co., Inc.). May 15, 1928. Packing food, tobacco, cigars, drugs, &c.- Unwrapped articles, more especially fruit, vegetables, &c., are enclosed for protection and preservation by applying directly thereto a coating of liquid hydrated cellulose which is then coagulated and dried, causing it to shrink on the article and form a homogeneous covering completely enclosing the article and exerting a compressive force thereon. The articles treated include tobacco, cigars, drugs, eggs and meat. The coating material may be prepared by immersing dried sulphite pulp sheets for about two hours in a bath containing about 17.6 per cent by weight of caustic soda, and at a temperature of about 20‹ C. The sheets are next pressed to remove surplus solution, and ground to flaky form, a preservative, for example 4 per cent of white resin and 6 per cent of sodium tetraborate, being incorporated therewith during the grinding. The material is next stored at about 18‹ C. for from about 63 to 96 hours to allow the reaction between the cellulose, soda and preservative to be completed. It is then treated with carbon, bisulphide in rotary drum or churn for 2-3¢ hours. The material is removed to a mixing kettle having a rotary beater to which a 3-6 per cent solution of caustic soda is added, together with a solution of sodium sulphite which will cause rapid coagulation of the material after application to the articles to be coated. The material is next filtered, for example in a press having linen, cotton, flannel or other suitable filtering medium, the product which is of syrupy consistency being then applied to the article. After coating, the article is immersed for 8-10 minutes in a coagulating bath consisting of a natural salt solution, for example an 11 per cent solution of ammonium sulphate. The coagulation is completed and impurities are removed by immersion in a suitable acid solution, for example a 0.15-0.25 per cent solution of sulphuric acid. The article is then dipped in a weak solution of caustic soda of about 0.05 per cent strength to neutralize the acid, and is then washed and dried. The article may be coated by dipping or spraying or by rolling it on a cloth saturated with the cellulose solution.
Patent GB-852720-A (GB)
Title: Improved method of manufacture of phosphate fertilizers in granular form
IPC: C05B1/02
Filed: 1959-04-27
Abstract: 852,720. Fertilizers. DUNGEMITTEL TECHNIK A.G. April 27, 1959 [April 30, 1958], No. 14341/59. Class 111. In a method of manufacturing phosphate fertilizers in granular form the granulation of the powdered phosphate is produced by spraying on the phosphate a mixture of phosphoric acid and calcium sulphate obtained by the action of sulphuric acid on phosphate. As shown phosphate material from a hopper 11 and sulphuric acid via a piping 12 are fed to a mixer 10 from which the mixture is pumped by a pump 13 and conduit 14 to a spraying machine 15 placed above a tray granulator 16 which is fed with phosphate by a distributer 17. The granules thus produced which may be assisted in forming by an additional spraying with water fall into a hopper 18 from which they are collected. Ammonia may be added to the mixture of phosphoric acid and calcium sulphate. The phosphate material may comprise natural phosphate, superphosphate and sulphates.
Patent GB-333253-A (GB)
Title: Improvements in and relating to thread or the like stitching, stringing and looping machines
IPC: D05B23/00
Filed: 1929-05-08
Abstract: 333,253. Hircock, J. T. May 8, 1929 Attaching handles to carrier bags; work supports.-A work support is provided to enable book-stitching machines embodying one or more needles, to be used for applying string handles to carrier bags the support holding one edge of the bag away from the looping needle while the other edge is being operated upon. The bag is placed on the support 2 so that the edges are separated, one edge being then in position for operation by the needle. The upper clamp 10 reciprocates in the usual way and engages an adjustable screw 13 on the lower clamp 11 to pivot it about the pin 12 and grip the bag edge ready for penetration by the needle. The support 2 has pivoted spring pressed side members 7 for stretching the bag taut on the support. The support 2 may be divided so that the parts can be adjusted laterally for bags of different widths.
Patent GB-475795-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B60S9/12
Filed: 1936-05-22
Abstract: 475,795. Lifting - jacks. SESSIONS, D. W., and SESSIONS & CO., Ltd., D. May 22, 1936, No. 14447. [Class 78 (iii)] A hydraulic lifting-jack comprises a cylinder 12 having a pump and valve casing fixed on its upper end, and a reservoir 31 fixed on the upper end of the pump casing, a piston carrying a ground-engaging foot being adapted to be displaced downwardly in the cylinder and so cause the vehicle-engaging attachment 63 fixed to the cylinder to raise the vehicle. By removing the detachable handle 46 from a supporting clip on the cylinder and applying it to the member 44 to operate the pump piston 39, liquid is drawn from the reservoir through the valve 33 on the outstroke, and forced past the valve 34 into the cylinder on the instroke. A spring-controlled plug valve 52 can be released by unscrewing the member 53 to byepass the liquid through ports 51, 49 back to the reservoir for lowering. Both valves 33 and 34 are spring-controlled and both pistons have double V-shaped packing rings 24, 25 facing in opposite directions. Ports 26, 27 admit pressure fluid to these packings. An annular ledge on the piston engages an internal projection 19 at the base of the cylinder to limit the maximum lift. A filling hole (not shown), is provided in the pump casing for charging the inverted reservoir which also serves as an indicator to secure that the correct amount of fluid is supplied to prevent too great a vacuum during working. A feature of the construction is that no operating parts or members pass through the wall of the reservoir. Specification 475,796, [Group XXVI], is referred to.
Patent GB-697387-A (GB)
Title: Resin bonded grinding wheels
IPC: B24D3/34
Filed: 1952-06-09
Abstract: The sides of a resin-bonded grinding wheel are coated with metal in granular condition to a density of at least 0.004 grams per square centimetre; the metal is selected from the group consisting of antimony, bismuth, cadmium, gallium, indium, lead, thallium and tin and alloys of two or more of these.  In the manufacture of a metal-coated cutting-off wheel with a phenolic resin bond, eight-pound wood pulp paper is first coated with tin by spreading on the paper a resinous suspension comprising powdered tin, powdered phenolic resin and isopropyl alcohol and then drying under heat lamps.  The coated paper is placed in the mould below and above the mixture of abrasive and phenolic resin, so that the coatings are secured to the wheel during moulding.
Patent GB-1083569-A (GB)
Title: Improvements in or relating to a one-piece luminous warning device
IPC: F21S8/00
Filed: 1966-04-01
Abstract: 1,083,569. Lamp caps and holders. V. RUSSENBERGER. April 1, 1966 [April 7, 1965], No. 14455/66. Heading H2E. [Also in Divisions E2 and F4] A warning device for panel mounting consists of a tubular body 1 of transparent or translucent insulating material having one or more external ribs 4 with the edges formed as teeth 8 for engaging the underside of the panel 9, and internal recesses to receive projections 26 on metal plates 20 forming terminals for electric leads for connection to the leads 18, 19 from an incandescent lamp 13 or neon lamp and a resistance 14 in series. The body may have elongated slots parallel to the ribs 4 and ending in slots at right-angles to enable the parts of the casing to be deformed inwards for insertion in the panel. The recesses may be at the end of slots in the inside of the casing.
Patent GB-736688-A (GB)
Title: Improved process and apparatus for cleaning coal
Inventor: WATERS PERCY LLOYD
IPC: B03D1/14
Filed: 1952-06-09
Abstract: 736,688. Cleaning coal. COAL INDUSTRY (PATENTS), Ltd. Sept. 9, 1953 [June 9, 1952], No. 14465/52. Class 82 (2). Coal of a size of ¢inch and below is freed from gangue by being introduced into a verticallyrising column of liquid medium in a pipe 10 at an intermediate region thereof, through a pipe 11, the liquid medium carrying air and flotation reagents and the rate of flow being adjusted so that the coal rises with it. The medium and coal passes into pipe 16 which acts as a syphon, thus lowering the pressure in the rising pipe 10. A shaking screen 17 separates the coal from the liquid which passes into the centrifugal pump 20 for recirculation. Air and flotation reagents are added at 22 and make up water at 23. Dirt is evacuated at 14. If desired, the density of the medium may be varied by dissolving material in it.
Patent GB-415223-A (GB)
Title: New or improved devices for suspending pictures and other objects from walls and the like
IPC: A47G1/20
Filed: 1933-05-19
Abstract: 415,223. Picture hooks. JONES, F., and JONES, E., (trading as JONES & SONS, R. H.), 114, Vyse Street, Birmingham. May 19, 1933, No. 14505. [Class 89 (ii).] The picture hook a<2> is formed from flat plate and has an enlarged head a<3> provided with curved surfaces on its lower side. These surfaces allow the hook to align itself to the vertical even though the supporting staple b<1> is driven on the skew.
Patent GB-661383-A (GB)
Title: A process for manufacturing water-soluble salts of alkylated aromatic sulphonic acids or products containing such salts
IPC: C07C2/70
Filed: 1948-05-28
Abstract: Water-soluble salts of alkylated aromatic sulphonic acids are obtained by alkylating monocyclic aromatic hydrocarbons, particularly benzene or toluene or mineral oil extracts substantially consisting of benzene or toluene, with a liquid fraction of a cracked product of hydrocarbon material, the fraction containing only 15 to 30 per cent of alkenes having an average of at least 10 carbon atoms in the molecule and having a boiling range between the boiling-point or the maximum of the boiling-point of the aromatic material and the minimum of the boiling-point of the alkylation product.  The alkylation is carried out at a temperature below 30 DEG  C., in the presence of concentrated sulphuric acid.  The alkylate-containing product is separated from the acid phase and is subjected to a hydrolytic treatment with a strong base at elevated temperature.  After separating the non-converted hydrocarbons from the product the alkylate is sulphonated with sulphuric acid of at least 97 per cent at a temperature not exceeding 50 DEG  C., any non-sulphonatable constituents are separated and the resulting sulphonic acid-containing mixture is neutralized.  The products may be used as detergents and wetting agents.  The preferred starting material is a cracked fraction, the alkenes of which contain an average of 12 carbon atoms in the molecule.  The process may be a continuous one. Benzene and toluene are the preferred aromatic starting materials but other monocyclic aromatic materials such as ethyl benzene, cumene and mineral oil extracts substantially consisting of such aromatics, e.g. the fractions of Edeleanu extract of kerose boiling below 200 DEG  C. may be used.  The cracked fractions preferably used consist substantially of dodecenes with small percentages of other alkenes, e.g. C10-C11 and C13-C14 alkenes in addition.  The concentration of the sulphuric acid used in the alkylation process is preferably about 90 per cent.  Very intimate contact should be brought about between the hydrocarbon phase and the sulphuric acid phase and this may be achieved by vigorous stirring or other suitable means. In the example a mixture of benzene and a C12-fraction, boiling between 170 DEG  and 230 DEG  C., of a cracked distillate of Venezuelan fuel oil, the fraction containing about 20 per cent of alkenes and having been previously refined to remove alkadienes, was added to sulphuric acid; the alkylate layer was separated from the acid layer, hydrolyzed with sodium hydroxide, fractionally distilled to remove excess of benzene and non-converted components of the cracked fraction and then sulphonated.
Patent GB-257042-A (GB)
Title: Improvements in internal combustion engines having rotary cylindrical dome headed valves
IPC: F01L7/04
Filed: 1925-06-05
Abstract: 257,042. Alexander, R. M., and Anscombe, F. June 5, 1925. Valves; valve gear. - A rotary cylindrical valve b is provided with a dome-shaped head b<1> in which is provided a port g co-operating with inlet and exhaust ports in a correspondinglyshaped cylinder head c, which is detachable. The valve is provided at its lower end with spur or helical teeth i driven from the engine s h a f t through chain, spur, or other gearing and a worm j. The weight of the valve is taken up by a flange h.
Patent GB-560872-A (GB)
Title: Improvements relating to electrical measuring or indicating systems
IPC: G01F23/26
Filed: 1942-10-20
Abstract: 560,872. Correspondence control systems. SMITH, S. J. Oct. 20, 1942, No. 14663. [Class 40 (i)] [Also in Group XXXVI] A liquid level indicating system comprises a power unit 22, Fig. 2, a rectifier unit 23, a measuring condenser 24 and a d.c. ratiometer 25. The power unit 22 comprises an oscillator generating a.c. at a frequency of about 20,000 cycles per second and energized from a lowtension d.c. supply through a vibratory converter 27. The output is fed to the rectifier unit 23 comprising a pair of step-down transformers 30, 31 and rectifiers 32, 33. The a.c. flows through two circuits in parallel, one comprising the primary of the transformer 30 and the measuring condenser 24 and the other comprising the primary of the transformer 31 and a reference condenser 35. The secondary windings of the transformers 30, 31 are connected through rectifiers 32, 33 to the separate coils of the ratiometer 25. The reference condenser 35 may be variable for zero adjustment. The measuring condenser 24 consists of two coaxial metal tubes 16, 17, Fig. 3, arranged vertically in and extending from the top to the bottom of the liquid container. At their lower ends the tubes are spaced apart by an insulating ring 18 and at their upper ends are secured to a flanged head 19 for securing the assembly to the top of the liquid container. Gauze-covered apertures 20 are provided to permit passage of air and liquid. The rectifier unit 23 may be housed within the flanged head 19. A number of measuring condensers connected in parallel may be arranged at selected points in the liquid container so that changes in attitude do not affect the reading.
Patent GB-1172174-A (GB)
Title: Improvements relating to Cleaning Devices for Printing Machines
Inventor: BREWSTER DONALD BURROUGHS
IPC: B41F35/06
Filed: 1968-03-27
Abstract: 1,172,174. Printing-apparatus. ADDRESSOGRAPH MULTIGRAPH CORP. 27 March, 1968 [27 March, 1967], No. 14744/68. Heading B6C. Apparatus 20 for cleaning an offset roller 16 in situ comprises a cleaning roller 40 rotatably supported in contact with the roller 16 in a frame 45, a pan 300 containing cleaning fluid and mounted on the frame below the roller 40, and a wick 360 extending lengthwise of the roller 40 and having its lower portion within the pan and its upper portion in wiping contact with the roller 40, said wick being shaped to provide a compressed lattice of resilient resin having a short substantially vertical conducting path for the fluid from the pan to the roller 40. The wick is advantageously of expanded polyurethane foam which has been compressed under heat and pressure to one-third of its original volume. A spring-loaded metal roller 90 controls the amount of fluid on the axiallyreciprocating roller 40 reaching the roller 16. The wick is gripped by teeth 372 on a strip 370 at one end of the pan and on its opposite side by teeth 372<SP>1</SP> supported by the pan cover 380. The roller 40 is tripped by manual operation of a lever 50 which swings the frame 45 utilizing an eccentric device 51, 52.